The seismic fragility is assessed for typical high-rise stacks encountered in oil refineries, namely process towers, chimneys, and flares. Models of varying complexity were developed the structures interest, attempting to balance computational accuracy regarding structural dynamic strength properties. models utilized along with a set hazard-consistent ground motions evaluating demands through i...

Fragility analysis of structures via numerical methods involves a complex trade-off between the desired accuracy, explicit consideration uncertainties (both epistemic and aleatory) related to structural model available computational performance. This paper introduces framework for deriving fragility relationships based on multi-fidelity non-linear models structure under investigation response-a...

Abstract Costal bridge systems usually contain tall piers with heights over 40 m, due to the engineering site exposed deep water circumstances. Note that conventional seismic isolation devices (e.g., bearings) are not effective for piers, since their dynamic performance is significantly affected by distributed mass and vibration modes of columns; therefore, base design philosophy could be a pro...